1 files changed, 77 insertions, 0 deletions
diff --git a/src/uscxml/plugins/datamodel/null/NULLDataModel.h b/src/uscxml/plugins/datamodel/null/NULLDataModel.h
new file mode 100644
index 0000000..eaa9dbd
--- /dev/null
+++ b/src/uscxml/plugins/datamodel/null/NULLDataModel.h
@@ -0,0 +1,77 @@
+#ifndef NULLDATAMODEL_H_KN8TWG0V
+#define NULLDATAMODEL_H_KN8TWG0V
+
+#include "uscxml/Interpreter.h"
+#include <list>
+
+#ifdef BUILD_AS_PLUGINS
+#include "uscxml/plugins/Plugins.h"
+#endif
+
+namespace uscxml {
+class Event;
+class Data;
+}
+
+namespace uscxml {
+
+class NULLDataModel : public DataModelImpl {
+public:
+	NULLDataModel();
+	virtual ~NULLDataModel();
+	virtual boost::shared_ptr<DataModelImpl> create(InterpreterImpl* interpreter);
+
+	virtual std::set<std::string> getNames() {
+		std::set<std::string> names;
+		names.insert("null");
+		return names;
+	}
+
+	virtual void initialize();
+	virtual void setEvent(const Event& event);
+
+	virtual bool validate(const std::string& location, const std::string& schema);
+
+	virtual uint32_t getLength(const std::string& expr);
+	virtual void pushContext();
+	virtual void popContext();
+
+	virtual void eval(const std::string& expr);
+	virtual void assign(const std::string& location,
+											const Arabica::DOM::Document<std::string>& doc,
+											const Arabica::DOM::Element<std::string>& assignElem) {}
+	virtual void assign(const std::string& location,
+											const std::string& expr,
+											const Arabica::DOM::Element<std::string>& assignElem) {}
+	virtual void assign(const std::string& location,
+											const Data& data,
+											const Arabica::DOM::Element<std::string>& assignElem) {}
+	
+	virtual void init(const std::string& location,
+										const Arabica::DOM::Document<std::string>& doc,
+										const Arabica::DOM::Element<std::string>& dataElem) {};
+	virtual void init(const std::string& location,
+										const std::string& expr,
+										const Arabica::DOM::Element<std::string>& dataElem) {};
+	virtual void init(const std::string& location,
+										const Data& data,
+										const Arabica::DOM::Element<std::string>& dataElem) {};
+
+	virtual Data getStringAsData(const std::string& content);
+	virtual bool isDeclared(const std::string& expr);
+
+	virtual std::string evalAsString(const std::string& expr);
+	virtual bool evalAsBool(const std::string& expr);
+	virtual double evalAsNumber(const std::string& expr);
+
+protected:
+
+};
+
+#ifdef BUILD_AS_PLUGINS
+PLUMA_INHERIT_PROVIDER(NULLDataModel, DataModelImpl);
+#endif
+
+}
+
+#endif /* end of include guard: NULLDATAMODEL_H_KN8TWG0V */